What is permeability packaging materials?

Permeability, as reported in the literature, is defined as the quantification of permeate transmission, gas or vapour, through a resisting material [2, 10]. So, the concept of permeability is normally associated with the quantitative evaluation of the barrier properties of a plastic material.

Which material should be used for packaging?

A number of traditional materials, such as wood, leather, glass, ceramic, and so on, have already been replaced by plastic. Plastic box packaging has many advantages in which they can be recycled, and generally they are much more durable than paperboard boxes.

Is PVC water permeable?

Permeability of Water and Liquids Rigid PVC has low permeability to water and water-based products. However, plasticised PVC has a relatively high permeability and it is this factor that is used in food packaging, allowing foods such as meat and cheese to breathe.

What are the four main materials used for packaging?

Below is a list of the most common packaging materials used all over the world.

1. Paper/Paperboard/Fiberboard. Paperboard and fiberboard are used in both primary and secondary packaging for companies throughout the world.
2. HDPE/PET/Rigid Packaging.
3. LDP/LLDPE/Flexible Packaging.
4. Aluminum Packaging.
5. Glass/Jars.

What’s the difference between permeability and plastic packaging?

Permeability and plastic packaging. From permeability point of view, the possibility that the molecules of a particular gas enter into a packaging, usually from outside, may influences food preservation inside the packaging. Therefore, the decision of choosing the best material or combination of materials, from permeability point of view,…

What makes food packaging permeable to small molecules?

1. Introduction In contrast to glass or metal packaging materials, packages made with plastic are permeable at different degrees to small molecules like gases, water vapour, and organic vapour and to other low molecular weight compounds like aromas, flavour, and additives present into food.

What are the characteristics of a packaging material?

Packaging materials, depending on the nature of the material and production technology, show different protection properties like permeability of water vapor, gases and light.

When do we say that a material has a particular gas permeability?

When we say that a material or packaging has a particular gas permeability, for instance oxygen, it gives us an idea of the amount of gas molecules that pass over the surface of the material or packaging.